Yasuhiro OHTA 
Yasuhiro OHTA
Department of Mathematics,
Graduate School of Science, Kobe University 
Division : Analysis
Professor 
Building B, Room 310

Research Field :
Nonlinear Integrable System, Applied Mathematics, Mathematical Engineering


Research Summary :
I am working on nonlinear integrable systems, in particular, nonlinear
evolution equations such as soliton equations and Painleve equations.
Algebraic structure of solution space and properties of exact
solutions are investigated. Their applications to fluid dynamics,
optical communications, numerical analysis are also studied. For
example we can regard numerical algorithm as dynamical system and the
mathematical structure of the algorithm are analyzed from the study of
evolution equations. 

Primary Publications : 
 C. Gilson, J. Hietarinta, J. Nimmo and Y. Ohta, SasaSatsuma HigherOrder Nonlinear Schrödinger Equation and Its Bilinearization and Multisoliton Solutions, Phys. Rev. E, 68 (2003) 016614.
 Y. Ohta, Discretization of Toroidal Soliton Equations, J. Nonlinear Math. Phys., 10 Suppl. 2 (2003) 143148.
 K. Kajiwara, T. Masuda, M. Noumi, Y. Ohta and Y. Yamada, Hypergeometric Solutions to the $q$Painlevé Equations, Int. Math. Res. Not., 47 (2004) 24972521.
 ChunXia Li and Y. Ohta, GramType Pfaffian Solution to the Coupled Discrete KP Equation, J. Phys. A, 38 (2005) 10891095.
 K. Kajiwara, T. Masuda, M. Noumi, Y. Ohta and Y. Yamada, Construction of Hypergeometric Solutions to the $q$Painlevé Equations, Int. Math. Res. Not., 24 (2005) 14391463.
 K. Kajiwara, T. Masuda, M. Noumi, Y. Ohta and Y. Yamada, Cubic Pencils and Painlevé Hamiltonians, Funkcial. Ekvac., 48 (2005) 147160.
 M. Nishizawa, Y. Ohta and S. Tsujimoto, Some Aspects of the Toda Molecule, Glasgow Math. J., 47A (2005) 169176.


